The conducted interference of electromagnetic pulse toward switch trigger system

In order to analyze the impact of the conducted interference of electromagnetic pulse's (EMP) effects on the reliability of switch trigger system, a common-ground coupling model is established and the research on the interference of the hydrogen thyristor's grid under the condition of common-ground coupling is taken by studying electromagnetic pulse (EMP). The results of experiments which are carried out in the condition of repetitive frequency EMP are showed to confirm that the conducted interference of electromagnetic pulse (EMP) has impact on tube output, and then both increasing quantity and reducing interval of repetitive frequency EMP can increase the probabilities of false triggering. Comparing with the theoretical analysis and the experiment results, it is concluded that this phenomenon originated from conducted interference accumulation effect of repetitive frequency and high frequency component strengthen leads to enhanced coupling.